Single-walled carbon nanotubes as adaptable one-dimensional crosslinker to bridge multi-responsive shape memory network via π–π stacking
Recently, shape-memory polymers (SMPs) with multi-response capacity and multi-functionality have become increasingly desired. Although these features can be achieved by integrating different functional units into one system, reaching this goal in materials with a minimalist structure remains a major...
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Published in | Composites communications Vol. 14; pp. 48 - 54 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
01.08.2019
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Subjects | |
Online Access | Get full text |
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Summary: | Recently, shape-memory polymers (SMPs) with multi-response capacity and multi-functionality have become increasingly desired. Although these features can be achieved by integrating different functional units into one system, reaching this goal in materials with a minimalist structure remains a major challenge. In this work, a multi-responsive shape-memory pyrene-containing poly(ε-caprolactone) network was developed by simple combination with single-walled carbon nanotubes (SWCNTs) as a one-dimensional, infinite-functional crosslinker. π-π Stacking between the SWCNTs and pyrene group formed stable netpoints and led to desirable shape-memory effects (SMEs). The pyrene group is highly beneficial for dispersing the SWCNTs, allowing the formation of an electrically conductive network with low loading capacity. Thus, thermo-, electro-, and photo-induced SMEs were realized by virtue of the excellent electrical conductivity and photothermal effect of the SWCNTs. The self-healing capacity of the network was also demonstrated by exploiting the dynamic π-π stacking interactions.
•The SWCNTs was used as a one-dimensional crosslinker to construct the shape memory networks via π–π stacking.•The networks exhibit excellent thermal, electro, light-induced shape memory effect.•The self-healing capacity of the network was demonstrated by utilizing the dynamic feature of π-π stacking interaction. |
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ISSN: | 2452-2139 2452-2139 |
DOI: | 10.1016/j.coco.2019.05.006 |